ES2265081T3 - PROCEDURE AND DEVICE FOR SIMULTANEOUS HEATING OF MATERIALS. - Google Patents

PROCEDURE AND DEVICE FOR SIMULTANEOUS HEATING OF MATERIALS. Download PDF

Info

Publication number
ES2265081T3
ES2265081T3 ES03018970T ES03018970T ES2265081T3 ES 2265081 T3 ES2265081 T3 ES 2265081T3 ES 03018970 T ES03018970 T ES 03018970T ES 03018970 T ES03018970 T ES 03018970T ES 2265081 T3 ES2265081 T3 ES 2265081T3
Authority
ES
Spain
Prior art keywords
tube
heating
laser beam
contour
laser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES03018970T
Other languages
Spanish (es)
Inventor
Jie Wei Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leister Process Technologies
Original Assignee
Leister Process Technologies
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leister Process Technologies filed Critical Leister Process Technologies
Application granted granted Critical
Publication of ES2265081T3 publication Critical patent/ES2265081T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1664—Laser beams characterised by the way of heating the interface making use of several radiators
    • B29C65/1667—Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0652—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot
    • B23K26/0734—Shaping the laser spot into an annular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1687—Laser beams making use of light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B29C65/1638—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding focusing the laser beam on the interface

Abstract

A laser beam(12) is guided by lenses(2,3,4) into the wall of a tube(5) which is transparent to IR(infra-red) radiation. The outlet end of the tube is shaped to match the desired heating contor(9) in the components to be welded together. On leaving the tube outlet end the contored laser beam is directed by a converging lens(7) onto the heating plane(8) of the flat material. The laser beam is produced from a fiber laser(1) and formed into a ring shape by a condensor lens(3) and then by a converging lens(4) precisely onto the inlet end face(13) of the tube(5). The outlet end(14) of a plastic tube is shaped by heating to the contor of the desired welded area(9). Both ends of the tubular light guide are polished and the inlet side is round. An independent claim is included for the process apparatus as described.

Description

Procedimiento y dispositivo para calentamiento simultáneo de materiales.Procedure and device for heating simultaneous of materials.

El objeto de la presente invención es un procedimiento y un dispositivo para el calentamiento simultáneo de materiales mediante radiación láser con una forma discrecional del contorno de calentamiento esencialmente plano.The object of the present invention is a procedure and a device for simultaneous heating of materials by laser radiation with a discretionary form of essentially flat heating contour.

Es conocido, por ejemplo por la patente JP-A-58027118, de calentar materiales mediante rayos láser a efectos de la conformación de materiales, por ejemplo para cortarlos, soldarlos etc. Asimismo es conocido unir materias plásticas mediante rayos láser, por ejemplo en el procedimiento de radiación láser. El procedimiento de radiación láser mediante radicación IR se aprovecha para la soldadura de la diferente absorción en las piezas que deben soldarse. La pieza superior dirigida hacia la fuente de láser es transparente al rayo láser mientras que la pieza inferior absorbe el rayo láser, de modo que en el punto de soldadura, debido al calentamiento de la parte inferior, ambos componentes se funden y se comprimen bajo presión. Mediante el rayo láser se pueden realizar unas soldaduras relativamente finas y altamente precisas, particularmente de componentes micromecánicos. Es preferente realizar la soldadura simultáneamente a lo largo de la entera línea de soldadura, de modo que, en un proceso de exposición, se caliente el entero contorno de soldadura esencialmente plano y se sueldan los componentes entre ellos. De esta manera el entrehierro entre los componentes es puenteado y los desniveles se compensan.It is known, for example by the patent JP-A-58027118, to heat materials by laser beams for the purpose of shaping materials, for example to cut them, weld them etc. That's it known to join plastic materials by laser beams, for example in the laser radiation procedure. The procedure of laser radiation by IR radiation is used for the welding of the different absorption in the parts that must weld The upper piece directed towards the laser source is transparent to the laser beam while the lower part absorbs the laser beam, so that at the point of welding, due to heating of the lower part, both components melt and They are compressed under pressure. Through the laser beam can be perform relatively fine and highly precise welds, particularly of micromechanical components. It is preferred perform the welding simultaneously along the entire line welding, so that, in an exposure process, it will heat up The entire contour of welding essentially flat and welded the components between them. In this way the air gap between components is bridged and the unevenness is compensated.

El objeto de la presente invención por lo tanto es proponer un procedimiento y un dispositivo en el cual los materiales con una forma discrecional del contorno de la línea de calentamiento se puedan calentar simultáneamente mediante radiación láser, y especialmente se puedan soldar componentes de materias plásticas.The object of the present invention therefore is to propose a procedure and a device in which the materials with a discretionary shape of the outline of the line of heating can be heated simultaneously by radiation laser, and especially can weld components of materials plastic

Este objeto se resuelve de acuerdo con la invención mediante un procedimiento según la reivindicación principal así como un dispositivo de acuerdo con la reivindicación independiente de dispositivo. Otras realizaciones preferentes se encuentran en las subreivindicaciones respectivamente relacionadas.This object is resolved according to the invention by a method according to the claim principal as well as a device according to the claim device independent. Other preferred embodiments are found in the subclaims respectively related

De acuerdo con el procedimiento, el rayo láser se inyecta mediante unos elementos ópticos en dirección longitudinal del lado frontal en la pared de un tubo conductor de rayos IR que está deformado en su lado de salida según el contorno, y el rayo láser emergente es posteriormente reproducido mediante una lente convergente en el plano de calentamiento. Mediante el tubo de paredes delgadas se produce una formación de rayos, en cuyo caso el tubo no solo se considera como conductor de luz y transformador de rayos, sino también como medio de homogeneización para la intensidad de la luz. A este efecto se pulen las dos extremidades de este tubo de paredes delgadas, para garantizar la inyección y salida sin pérdidas de los rayos láser. La circunferencia circular del tubo conductor de luz corresponde a la longitud del contorno de calentamiento entero deseado, de modo que se realicen los contornos de calentamiento en la mayoría de casos cerrados. En uno de los lados del tubo, el mismo es mantenido de manera preferente en su forma redonda. Este lado sirve de interfaz para la inyección de luz. El otro lado del tubo es formado específicamente según el componente para generar el contorno deseado. La transformación de este lado puede efectuarse de varias maneras, siendo una posibilidad por ejemplo calentar un tubo de materia plástica con aire caliente, ablandar la materia plástica ligeramente y posteriormente configurar la figura de contorno deseada con herramienta auxiliar de conformación. Otra manera de conformación es la fabricación mediante herramienta de molde para fundición inyectable. De modo general sirven todos los materiales que garanticen las funciones antes mencionadas, por ejemplo materias plásticas, vidrio o herramienta basada en
vidrio.According to the method, the laser beam is injected by means of optical elements in the longitudinal direction of the front side into the wall of an IR ray tube which is deformed on its exit side according to the contour, and the emerging laser beam is subsequently reproduced by a converging lens in the heating plane. The thin-walled tube produces a ray formation, in which case the tube is not only considered as a light conductor and ray transformer, but also as a homogenization medium for the intensity of light. For this purpose, the two ends of this thin-walled tube are polished to ensure the injection and exit without loss of the laser beams. The circular circumference of the light-conducting tube corresponds to the length of the desired overall heating contour, so that the heating contours are made in the majority of closed cases. On one of the sides of the tube, it is preferably maintained in its round shape. This side serves as an interface for the injection of light. The other side of the tube is formed specifically according to the component to generate the desired contour. The transformation of this side can be carried out in several ways, being a possibility for example to heat a plastic tube with hot air, soften the plastic material slightly and then configure the desired contour figure with auxiliary shaping tool. Another way of forming is the manufacture by mold tool for injection molding. In general, all the materials guaranteeing the aforementioned functions are used, for example plastics, glass or tool based on
glass.

A efectos de facilitar la inyección homogeneizada de luz, de modo preferente la radiación láser puede transformarse en forma anular. En este caso, la circunferencia circular del anillo debería corresponder a la circunferencia circular del tubo de materia plástica de manera precisa.In order to facilitate the injection homogenized light, preferably laser radiation can transform into annular form. In this case, the circumference Circular ring should correspond to the circumference circular of the plastic material tube in a precise way.

Preferentemente, la radiación láser conformada de forma anular se obtiene mediante una lente Axicon. La misma transfiere la luz láser en una forma anular y se enfoca de modo nítido en la sección transversal del tubo conductor de luz mediante una lente convergente siguiente. De esta manera, la energía láser puede inyectarse sin pérdidas en el tubo conductor de luz.Preferably, the laser radiation formed Annular shape is obtained by means of an Axicon lens. The same transfers the laser light in an annular shape and focuses in sharp in the cross section of the light-conducting tube a converging lens next. In this way, the laser energy it can be injected without losses into the light-conducting tube.

El rayo láser que sale por ejemplo de una fibra óptica puede colimarse en la lente Axicon mediante una lente convergente. Cuando la luz láser sale del otro lado del tubo conductor de luz, radiará con un ángulo de divergencia más grande. Puesto que existe una distancia no reducible entre la salida del tubo de materia plástica y el plano de calentamiento, la figura de salida se configura de modo preferente otra vez precisamente en el plano de calentamiento mediante una lente convergente. De este modo se obtiene la distancia deseada de operación entre el lado frontal del tubo y el componente. La homogeneización de la intensidad del rayo se mejora a través de la longitud del tubo. La misma puede elegirse de manera variable.The laser beam that comes out, for example, from a fiber Optics can be collimated in the Axicon lens through a lens convergent. When the laser light comes from the other side of the tube light conductor, will radiate with a larger divergence angle. Since there is a non-reducible distance between the output of the plastic material tube and the heating plane, the figure of The output is preferably configured again precisely in the heating plane by means of a converging lens. In this way you get the desired distance of operation between the front side of the tube and the component. The homogenization of the intensity of Lightning is improved through the length of the tube. It can to be chosen in a variable way

Gracias a la invención se obtiene una alta flexibilidad en la fabricación de un tubo conductor de luz de esta índole como herramienta óptica. La formación de rayos láser en forma anular y la variación de la circunferencia anular es relativamente sencilla, de manera que el esfuerzo para la fabricación de un dispositivo completo de esta índole es bajo y por lo tanto muy ventajoso.Thanks to the invention, a high flexibility in the manufacture of a light conductor tube of this nature as an optical tool. The formation of laser beams in the form annular and the variation of the ring circumference is relatively simple, so that the effort to manufacture a This complete device is low and therefore very advantageous.

Esta técnica facilita entre otras cosas la soldadura simultánea de componentes de materia plástica, siendo ventajoso el progreso de la técnica que permite emitir un rendimiento siempre más alto de láser desde un punto. En este caso el láser de fibra ofrece un punto enfocable de un tamaño pequeño entre 6 y 50 \mum. El rendimiento óptico de este tipo de láser se gradúa discrecionalmente desde pocos vatios hasta varios quilovatios. Gracias a ello, la utilización técnica de esta invención se hace posible en un gran campo de aplicación.This technique facilitates, among other things, simultaneous welding of plastic material components, being advantageous the progress of the technique that allows to emit a always higher laser performance from one point. In this case the fiber laser offers a focus point of a small size between 6 and 50 \ mum. The optical performance of this type of laser is graduates discretionally from a few watts to several quilowatts. Thanks to this, the technical use of this invention becomes possible in a large field of application.

A continuación, la invención se muestra y se explica en un ejemplo de realización en relación con los dibujos acompañantes en un caso de soldadura de componentes de materia plástica. Representan:Next, the invention is shown and explains in an exemplary embodiment in relation to the drawings companions in a case of welding of material components plastic. Represent:

La figura 1 una vista en perspectiva del dispositivo entero;Figure 1 a perspective view of the entire device;

La figura 2 una representación parcial agrandada de la extremidad del tubo conductor de luz hasta los componentes a ser soldados; yFigure 2 a partial representation enlarged from the tip of the light-conducting tube to the components to be soldiers; Y

La figura 3 una representación de la trayectoria óptica con los diversos conos de rayo.Figure 3 a representation of the optical path with the different ray cones.

La figura 1 representa una fibra óptica 1 de la cual sale un rayo láser 12 que es colimado a través de una lente convergente 2 en una lente Axicon o lente cónica 2. La lente Axicon deforma el rayo láser, tal como se representa en la figura 3, de modo que se configure una trayectoria óptica de forma cónica. El anillo que incide en la próxima lente convergente 4 se enfoca en la extremidad redonda 13 del lado frontal del tubo conductor de luz y penetra allí en la pared. Evidentemente, el anillo formado por la lente 4 debe coincidir con las dimensiones del tubo 5. El rayo láser se transmite posteriormente a la extremidad de salida a través del tubo 5 que está configurado como tubo de materia plástica en el ejemplo de realización. En esta extremidad el tubo 5 está deformado de acuerdo con los contornos 6, de modo que el rayo láser que sale allí presenta este contorno correspondiente. Para enfocar el rayo láser en el plano de soldadura 8, el mismo, después de su salida de la extremidad deformada 14 del lado frontal incide en una lente 7 que enfoca y representa de manera precisa, de modo que en el plano de soldadura 8 se genere el contorno 9 representado en la figura 1 y la figura 2.Figure 1 represents an optical fiber 1 of the which leaves a laser beam 12 that is collimated through a lens Convergent 2 on an Axicon lens or conical lens 2. The Axicon lens deforms the laser beam, as shown in Figure 3, of so that an optical path of conical shape is configured. The ring that hits the next converging lens 4 focuses on the round end 13 of the front side of the light-conducting tube and it penetrates there in the wall. Obviously, the ring formed by the 4 lens must match the dimensions of tube 5. Lightning laser is subsequently transmitted to the exit tip through of the tube 5 which is configured as a tube of plastic material in the example of realization. In this extremity the tube 5 is deformed according to the contours 6, so that the laser beam that comes out there it presents this corresponding contour. To focus the beam laser in the welding plane 8, the same, after its output from the deformed end 14 of the front side impinges on a lens 7 that focuses and represents accurately, so that in the plane 8, the contour 9 shown in FIG. 1 is generated and Figure 2

La figura 2 muestra el tubo 5 en una representación a escala reducida con su extremidad redonda 13 del lado frontal y su extremidad deformada 14 del lado frontal así como los componentes que deben ser conectados entre ellos, con la pieza a unir transparente 14 y la pieza a unir absorbente 11.Figure 2 shows tube 5 in a representation on a reduced scale with its round tip 13 of the front side and its deformed end 14 of the front side as well as the components that must be connected between them, with the piece to join transparent 14 and the piece to be joined absorbent 11.

Claims (10)

1. Procedimiento para el calentamiento simultaneo de materiales teniendo un contorno de calentamiento discrecional, esencialmente plano, mediante radiación láser, caracterizado porque el rayo láser (12) se inyecta mediante unos elementos ópticos (2 a 4) en dirección longitudinal en la pared de un tubo (5) transparente a la radiación IR que está formado de acuerdo con el contorno (9) deseado de calentamiento en el lado de salida (14), y porque el rayo láser que sale se reproduce posteriormente en el plano (8) de calentamiento mediante una lente convergente (7).Method for simultaneous heating of materials having a discrete heating contour, essentially flat, by laser radiation, characterized in that the laser beam (12) is injected by means of optical elements (2 to 4) in the longitudinal direction in the wall of a tube (5) transparent to the IR radiation that is formed according to the desired contour (9) of heating on the outlet side (14), and in that the laser beam that leaves is subsequently reproduced in the heating plane (8) through a converging lens (7). 2. Procedimiento de acuerdo con la reivindicación 1, caracterizado por el hecho que el rayo láser (12) se conforma mediante unos elementos ópticos (2 a 4) en forma anular y se inyecta en la pared de un tubo (5) redondo del lado de entrada (13).Method according to claim 1, characterized in that the laser beam (12) is formed by ring-shaped optical elements (2 to 4) and injected into the wall of a round tube (5) on the side of entry (13). 3. Procedimiento de acuerdo con la reivindicación 2, caracterizado por el hecho que el rayo láser (12) se conforma mediante una lente Axicon (3) en forma anular y posteriormente se enfoca de manera nítida en el lado frontal (13) del lado de entrada (13) del tubo (5) mediante una lente convergente (4).Method according to claim 2, characterized in that the laser beam (12) is formed by an Axicon lens (3) in an annular shape and subsequently sharply focused on the front side (13) of the entrance (13) of the tube (5) by means of a converging lens (4). 4. Procedimiento de acuerdo con una de las reivindicaciones precedentes, caracterizado por el hecho que se utiliza como tubo un tubo de materia plástica y porque el lado de salida (14) se adapta al contorno de soldadura deseado (9) por calentamiento del material.Method according to one of the preceding claims, characterized in that a tube of plastic material is used as a tube and that the outlet side (14) adapts to the desired welding contour (9) by heating the material. 5. Procedimiento de acuerdo la reivindicación 4, caracterizado por el hecho que el contorno de salida (6) del tubo (5) se enfoca de manera nítida en el plano de enfoque mediante una lente convergente (4).Method according to claim 4, characterized in that the outlet contour (6) of the tube (5) is sharply focused in the focusing plane by a converging lens (4). 6. Procedimiento de acuerdo con una de las reivindicaciones precedentes, caracterizado por el hecho que el rayo láser es generado por un láser de fibra (1).Method according to one of the preceding claims, characterized in that the laser beam is generated by a fiber laser (1). 7. Dispositivo para el calentamiento simultaneo de materiales teniendo un contorno de calentamiento discrecional, esencialmente plano, mediante radiación láser, caracterizado por una disposición óptica (2 a 4) para configurar un rayo láser (1) y enfocarlo en un conductor tubular de luz (5) transparente a la radiación IR que está formado de acuerdo con el contorno (9) deseado de calentamiento en el lado de salida (14), así como de un dispositivo siguiente (7) para enfocar el rayo láser que sale se reproduce posteriormente en el plano (8) de calentamiento.Device for simultaneous heating of materials having a discrete heating contour, essentially flat, by laser radiation, characterized by an optical arrangement (2 to 4) for configuring a laser beam (1) and focusing it on a tubular light conductor ( 5) transparent to the IR radiation which is formed in accordance with the desired heating contour (9) on the exit side (14), as well as of a following device (7) for focusing the outgoing laser beam is reproduced subsequently in the heating plane (8). 8. Dispositivo de acuerdo con la reivindicación 7, caracterizado por el hecho que las extremidades (13, 14) del conductor tubular de luz (5) están pulidas.Device according to claim 7, characterized in that the ends (13, 14) of the tubular light conductor (5) are polished. 9. Dispositivo de acuerdo con la reivindicación 7 o 8, caracterizado por el hecho que el conductor tubular de luz (5) es redondo en su lado de entrada (13).Device according to claim 7 or 8, characterized in that the tubular light conductor (5) is round on its inlet side (13). 10. Dispositivo de acuerdo con la reivindicación 9, caracterizado por el hecho que la disposición óptica presenta una lente Axicon (3) y una lente convergente (4) para enfocar el rayo láser (1) en el lado de entrada (13) del tubo (5).Device according to claim 9, characterized in that the optical arrangement has an Axicon lens (3) and a converging lens (4) to focus the laser beam (1) on the input side (13) of the tube (5).
ES03018970T 2003-08-21 2003-08-21 PROCEDURE AND DEVICE FOR SIMULTANEOUS HEATING OF MATERIALS. Expired - Lifetime ES2265081T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03018970A EP1508397B1 (en) 2003-08-21 2003-08-21 Method and apparatus for simultaneous heating of materials

Publications (1)

Publication Number Publication Date
ES2265081T3 true ES2265081T3 (en) 2007-02-01

Family

ID=34042880

Family Applications (1)

Application Number Title Priority Date Filing Date
ES03018970T Expired - Lifetime ES2265081T3 (en) 2003-08-21 2003-08-21 PROCEDURE AND DEVICE FOR SIMULTANEOUS HEATING OF MATERIALS.

Country Status (7)

Country Link
US (1) US7285744B2 (en)
EP (1) EP1508397B1 (en)
JP (1) JP2005177859A (en)
CN (1) CN1305631C (en)
AT (1) ATE328698T1 (en)
DE (1) DE50303706D1 (en)
ES (1) ES2265081T3 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070047932A1 (en) * 2005-08-31 2007-03-01 Branson Ultrasonics Corporation Waveguide for plastics welding using an incoherent infrared light source
DE102006008776B4 (en) * 2006-02-24 2011-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for joining at least two joining partners consisting of thermoplastic material by means of laser radiation
DE102007035717A1 (en) 2006-12-27 2008-07-03 Robert Bosch Gmbh Laser welding machine has optical system which produces annular laser beam comprising collimator, axicon, lens system and conical mirror
DE102007035715A1 (en) 2006-12-27 2008-07-03 Robert Bosch Gmbh Laser beam processing device for hardening of workpieces, includes device for imaging reflected laser radiation from workpiece onto sensor
JP5185557B2 (en) * 2007-03-30 2013-04-17 三菱重工業株式会社 Equipment for improving residual stress in pipes
US8571365B2 (en) * 2008-11-05 2013-10-29 The Regents Of The University Of California Apparatus and method for micromanipulation of microscale objects using laser light delivered through a single optical fiber and axicon lens
CN102107530A (en) * 2010-12-30 2011-06-29 东莞市创普光电技术有限公司 New method for welding plastics by metal laser welding machine
DE102012109937A1 (en) * 2012-10-18 2014-04-24 Limo Patentverwaltung Gmbh & Co. Kg Device for applying light to an inside of a cylinder and beam transformation device for such a device
JP5832412B2 (en) * 2012-11-12 2015-12-16 三菱重工業株式会社 Optical system and laser processing apparatus
CN103465471B (en) * 2013-08-09 2015-12-09 上海大学 Laser package method and device
WO2016095954A1 (en) * 2014-12-15 2016-06-23 Toyota Motor Europe Nv/Sa Systems for and method of welding using beam shaping means and shielding means
CN104999661B (en) * 2015-07-28 2017-06-06 上海信耀电子有限公司 A kind of laser synchronization welding procedure and device
DE102016103230B3 (en) * 2016-02-24 2017-07-06 Jenoptik Automatisierungstechnik Gmbh Device for laser transmission welding of an annular weld
DE102016118189B4 (en) * 2016-09-27 2018-08-30 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Method and laser processing machine for laser welding a first and a second workpiece section
WO2018212947A1 (en) * 2017-05-17 2018-11-22 Branson Ultrasonics Corporation Simultaneous laser welding using two-micron laser light
CN107215847A (en) * 2017-07-06 2017-09-29 上海应用技术大学 A kind of quick micromachining device of Teflon and method
CN110864677B (en) * 2019-12-03 2021-01-08 中国矿业大学(北京) Square profile laser marking method and device based on optical reflection and refraction
DE102022004766A1 (en) 2022-12-16 2024-01-11 Mercedes-Benz Group AG Method for laser beam welding of at least one component

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419321A (en) * 1966-02-24 1968-12-31 Lear Siegler Inc Laser optical apparatus for cutting holes
US4097118A (en) * 1975-10-30 1978-06-27 Rca Corporation Optical waveguide coupler employing deformed shape fiber-optic core coupling portion
JPS5827118A (en) * 1981-08-11 1983-02-17 Toshiba Corp Irradiating method for laser light
AU606315B2 (en) * 1985-09-12 1991-02-07 Summit Technology, Inc. Surface erosion using lasers
JPH0698508B2 (en) * 1985-12-25 1994-12-07 株式会社小松製作所 Optical beam processing device
DE3787463T2 (en) * 1986-07-08 1994-04-28 Komatsu Seisakusho Tokio Kk DEVICE FOR SHAPING A LASER BEAM.
US4824194A (en) * 1987-03-25 1989-04-25 Fuji Photo Film Co., Ltd. Light guide apparatus formed from strip light guides
US5200230A (en) * 1987-06-29 1993-04-06 Dunfries Investments Limited Laser coating process
US4799755A (en) * 1987-12-21 1989-01-24 General Electric Company Laser materials processing with a lensless fiber optic output coupler
US4941734A (en) * 1988-11-18 1990-07-17 Amp Incorporated Beam allocation and delivery system for excimer laser
DE3904662A1 (en) * 1989-02-16 1990-08-23 Licentia Gmbh Fibre-optic coupling arrangement
JPH02299791A (en) * 1989-05-15 1990-12-12 Nippon Steel Corp Workpiece irradiating method with laser beam
NL8902485A (en) * 1989-10-06 1991-05-01 Optische Ind De Oude Delft Nv Apparatus for providing a beam of laser radiation with a homogeneous energy distribution.
JPH03170616A (en) * 1989-11-29 1991-07-24 Mitsubishi Heavy Ind Ltd Laser beam optical instrument for heating inner face of pipe
JPH03185776A (en) * 1989-12-14 1991-08-13 Hitachi Cable Ltd Laser machining equipment
US5261904A (en) * 1990-01-30 1993-11-16 C. R. Bard, Inc. Laser catheter having diffraction grating for beam shaping
JPH0412745A (en) * 1990-05-02 1992-01-17 Olympus Optical Co Ltd Laser probe
JPH0434505A (en) * 1990-05-31 1992-02-05 Fujitsu Ltd Optical waveguide type device and production thereof
JP3057110B2 (en) * 1991-09-11 2000-06-26 リコー光学株式会社 Laser processing mask irradiation equipment
US5251060A (en) * 1991-09-30 1993-10-05 Sumitomo Electric Industries, Ltd. Light-source unit
US5778133A (en) * 1994-04-29 1998-07-07 Geo Labs, Inc. Nonimaging light collector
JPH05208258A (en) * 1992-01-17 1993-08-20 Nippon Steel Corp Soldering device
JP3285957B2 (en) * 1992-09-29 2002-05-27 株式会社東芝 Optical device
JPH06262384A (en) * 1993-01-14 1994-09-20 Toshiba Corp Laser beam machine
WO1995018984A1 (en) * 1994-01-07 1995-07-13 Coherent, Inc. Apparatus for creating a square or rectangular laser beam with a uniform intensity profile
US5530709A (en) * 1994-09-06 1996-06-25 Sdl, Inc. Double-clad upconversion fiber laser
US5607730A (en) * 1995-09-11 1997-03-04 Clover Industries, Inc. Method and apparatus for laser coating
JPH1128591A (en) * 1997-07-07 1999-02-02 Hitachi Electron Eng Co Ltd Texture machining device
US6760973B1 (en) * 1999-06-30 2004-07-13 Canon Kabushiki Kaisha Laser working method and method for producing ink jet recording head
JP3630293B2 (en) * 1999-10-06 2005-03-16 トヨタ自動車株式会社 Laser welding method of resin material
EP1112802B1 (en) * 1999-12-23 2003-06-11 Leister Process Technologies Method and device for heating at least two elements by means of high energy density laser beam
JP2001334578A (en) * 2000-05-26 2001-12-04 Matsushita Electric Works Ltd Method for welding resin by laser
US6860960B1 (en) * 2000-09-05 2005-03-01 Scimed Life Systems, Inc. Method of applying a laser beam around the circumference of a catheter
JP2002283086A (en) * 2001-03-23 2002-10-02 Sumitomo Heavy Ind Ltd Method and device for laser beam machining
JP2003121705A (en) * 2001-10-12 2003-04-23 Toshiba Corp Waveguide type optical module
JP2003145626A (en) * 2001-11-08 2003-05-20 Fine Device:Kk Method for connecting resin material
JP3426226B1 (en) * 2002-01-10 2003-07-14 日本ライツ株式会社 Light guide member, lighting unit and instrument
US6858104B2 (en) * 2002-01-28 2005-02-22 Scimed Life Systems, Inc. Apparatus and method for closed-loop control of laser welder for welding polymeric catheter components
JP2004184437A (en) * 2002-11-29 2004-07-02 Toshiba Corp Semiconductor laser system, control method of semiconductor laser and video display device

Also Published As

Publication number Publication date
CN1305631C (en) 2007-03-21
EP1508397B1 (en) 2006-06-07
JP2005177859A (en) 2005-07-07
EP1508397A1 (en) 2005-02-23
US20050077276A1 (en) 2005-04-14
ATE328698T1 (en) 2006-06-15
CN1583346A (en) 2005-02-23
DE50303706D1 (en) 2006-07-20
US7285744B2 (en) 2007-10-23

Similar Documents

Publication Publication Date Title
ES2265081T3 (en) PROCEDURE AND DEVICE FOR SIMULTANEOUS HEATING OF MATERIALS.
ES2200460T3 (en) PROCEDURE AND DEVICE FOR THE WARMING OF AT LEAST TWO ELEMENTS BY LASER RAYS WITH HIGH ENERGY DENSITY.
US20050167407A1 (en) Process and apparatus for joining components using laser radiation
CA1258448A (en) Apparatus and method for providing direct cool beam incident light on dental targets
ES2230415T3 (en) PROCEDURE AND DEVICE FOR THE UNION OF PLASTIC MATERIALS WITH HIGH SPEED WELDING.
US7723640B2 (en) Optical horned lightpipe or lightguide
JPS61182892A (en) Laser optical device
JP6825047B2 (en) Processing head
JP2020500810A5 (en)
US9891384B2 (en) Systems and methods for multiple-pass stripping of an optical fiber coating
US20070047932A1 (en) Waveguide for plastics welding using an incoherent infrared light source
CN106536121A (en) Laser device for performing an annular circumferential welding on a workpiece using optical reflectors
JP2006512221A5 (en)
US20050205534A1 (en) Single and dual lensed optical waveguide for uniform welding
JP2013166379A (en) Infrared plastic welding with recirculation of unabsorbed infrared laser light to increase absorption of infrared laser light
JP2019503275A (en) Laser optical device and head
ES2248672T3 (en) LASER WELDING PROCEDURE FOR STRUCTURED PLASTICS.
WO2002056787A2 (en) Optically-enhanced halogen curing light
KR20180117118A (en) Laser welding equipment for annular welding seams
US9907636B2 (en) Curing lights with homogenous light patch
JP5669910B2 (en) Laser welding equipment for resin molded products
JP2001105168A (en) Light-emitting optical system, laser beam machining device equipped with light-emitting optical system, and laser beam machining method
JP4185405B2 (en) Bonding method between resin materials
Vidal et al. Fiber coupling of high-power diode laser stack for direct polycarbonate processing
CN213708481U (en) Laser cladding head for inner wall of pipeline